ohhh ok.
Thanks for the help
But there is an XML example using XML::Twig in which
the author has defined the hash as
my $hash={ 'abc'=>'def'.
'ghi'=>'jkl',
'mnp'=>'pqr'
}
I thought it is a reference to a hash.
Is it so? Can we directly define reference variables like this?
On Thu, Nov 12, 2009 at 4:06 PM, John W. Krahn <jwkr...@shaw.ca> wrote:
> Anant Gupta wrote:
>
>> ..
>> use strict;
>> ..
>>
>> my %hash;
>> my $abc;
>> my $count;
>> while(defined($ARGV[$count]))
>> {
>> push(@hash{$abc},$ARGV[$count]);
>> }
>>
>
> @ARGV gets its values from the command line so all its elements should be
> defined, unless you are using delete() on one of its elements. You are not
> changing the value of $count in the loop so that probably won't work very
> well. You should just assign to the hash:
>
> my $abc;
> my %hash = ( $abc => [ grep defined, @ARGV ] );
>
> Or just:
>
> my $abc;
> my %hash = ( $abc => [ @ARGV ] );
>
>
>
>
>
> John
> --
> The programmer is fighting against the two most
> destructive forces in the universe: entropy and
> human stupidity. -- Damian Conway
>
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